+       /**
+        * Set locked
+        *
+        * @param \DateTime $locked
+        *
+        * @return Session
+        */
+       public function setLocked($locked) {
+               $this->locked = $locked;
+
+               return $this;
+       }
+
+       /**
+        * Get locked
+        *
+        * @return \DateTime
+        */
+       public function getLocked() {
+               return $this->locked;
+       }
+